XeOS/src/main.rs

49 lines
1.0 KiB
Rust

#![no_std]
#![no_main]
#![feature(custom_test_frameworks)]
#![test_runner(xe_os::test_runner)]
#![reexport_test_harness_main = "test_main"]
extern crate alloc;
use alloc::boxed::Box;
use bootloader::{entry_point, BootInfo};
use core::panic::PanicInfo;
use xe_os::println;
entry_point!(kernel_main);
fn kernel_main(boot_info: &'static BootInfo) -> ! {
use x86_64::VirtAddr;
use xe_os::allocator;
use xe_os::memory::{self, BootInfoFrameAllocator};
xe_os::init(&boot_info);
println!("Hello World{}", "!");
// allocate a number on the heap
let heap_value = Box::new(41);
println!("heap_value at {:p}", heap_value);
#[cfg(test)]
test_main();
println!("It did not crash!");
xe_os::hlt_loop();
}
// our existing panic handler
#[cfg(not(test))] // new attribute
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
println!("{}", info);
xe_os::hlt_loop();
}
// our panic handler in test mode
#[cfg(test)]
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
xe_os::test_panic_handler(info);
}